Automatically-threading shuttle.



E S. STIMPSON.' AUTOMATICALLY THREADIITGgSHUTTLB.

APPLIOATION FILED FEB; 20, 1909.

Patented Sept. 7, 1909.

- e'rlv and freely err sTATEs PATENT ori ice.

EDWARD S. STIMPSON, OF HOPEDAIQE, MASSACHUSETTS; ASSIGNOR TO DE'APEB66H- PANY, OF HOBEDALE, MASSACHUSETTS, A QQRPORATION OF MAINE.

AUTOMATICALLY-THREADTNG SHUTTLE.

933,729. Specification of Lettersfatent.

Application filed February20; 1909; Serial No. 429,071

To all whom it may concern:

Be it known that I, Enwan'n a citizen of the United States, andresidentof Hopedale, county of \Vorcester, State of Massachusetts, have inventedan Improve-l men t in Antoniatically-Threading Shuttles; of which thefollowing description, in connection with the accompanying drawing, is aspecification; like letters on the drawing representing like parts. i

This invention relates toshuttles designed to be used in looms of thetype wherein pro vision is made to supplyautomatically the workingshuttle with fresh filling from time totime without interfering "wti lththe running of the loom. Such shnjt es ardprovided with means to assuniecontrol autoniatically of the incoming filling thread'and to direct itto the delive'ryseye of the shuttle in order that the thread may bedelivered propas thesliuttle is picked.

The threading device is arranged to assume control of the new thread anddirect it into a thread passage on the first shot of the shuttlefollowing replenishment, and on the return shot the thread should bedirected au-" tomatically into the delivery-eye completing thethreading. Some shuttles are provided also with means whereby the threadcan be delivered freely even if the threading is not completed on thesecond shot, as above re-- ferred to, so that while the thread isdeliv-- ered from a part of the shuttle independent of the delivery-eyethe thread will not be broken, nor will the proper operation of the loombe affected.

My present invention relates to the latter type of shuttle, andcomprehen'ds certain ilnprovements in various features as well'as theconstruction of the threading device from plate or sheet-metal, formedby the useo'f suitable dies, so that the threading device is ready foruse as soon as it is mounted in the shuttle,obviating various handoperations requiring skill and judgment on the part of the operator, andenabling the threading devices to be indefinitely and exactly reproduced.

I make the threading device in two parts and when such parts areassembled they are held in the proper relation one to the other to forma complete threadin device, and such relationship is maintainer by thesingle fastening member which retains the device as a whole in theshuttle.

S. SrmPso The various novel features of my invention will be fullydescribed in the subjoined specification and particularly pointed out inthe following claims. I Figure 1 is atop plan view of the eye of ashuttle containing mv present inven tionflfig. 2 is a front eevation theFig. 33s a front elevation of the thee device, with its separablemembers assemble but removed from the shuttle; Fig. 4% is a right-handend elevation of the threading do vi'ce 'shownin Fig. 3;. Fig. 5 infront clove-- tion shows one of the members of thethreading deviceuptilted'to more'clearly show the manner in which the members areassembled; Figs. 6 and 7 are perspective views of the outer and innermembers of the threading device, the former member carrying shield andthe latter member carrying gr :5 d.

ciif

and turned away from the nearer'tip ofitne shuttle; Figs. 8 and 9 areplan views oi the blanks from which are formed the outer and. innermembers, respectively ofthe threading device; Fig. tion of the assembledthreading device, View ingFigIB. i s

Ass own in 'Fig.' 1 the shuttle A. has a bobbin-receiving opening A andan open delivery-eye a. provided with a narrow entrance slot at, asusual in shuttles of this type, and the shuttle-Wood is suitably cut outto; receive the threading device and to present a "downwardly inclineddirecting channelAleading away from the tip of the shuttle tothe threadpassage, the front wall a. of the channel extending to the entrane slota' and having its to inclined down wardly from the top of the upper endofthe entrance slot. liner 0, tubular in form, is; eye and is providedwith a longitudinal slot 6 whichvregisters 'sviththe entrance slot a asshown in Fig. 2, the z neral' shape of the liner being shown in ottedlines Fig. 1. This liner is made the subject of claimssin anotherapplication Serial by'me the 12th day of' Octobei, 1968, and is not.claimed herein. In such plication I have also shown the threadingfievicemade of plate or sheet-metal, in two parts, and herein I have shownanotherttorn oft-breading-device, the peculiar and novel ares of whichwill be fully described hereinafter.

A metallic The blanks B and C, Figs. 8 and 9 enter Patented se ta. teen.

I0 is a left-hand end eleva- V" shuttle to the beak which in practice iscurved rearwardiy inserted in the stamped out of suitable plate metal,such as sheet steel, form'when completed the two .parts or members ofthe threading device,

the blank B being bent on the dotted lines b to present upturned andparallel front and rear walls I), b, Fig. 6, the flat bottom 22connecting the walls having at one end an extension 5, turned up asshown in Figs. 3, 5, 6 and 10, at b and notched, while atthe oppositeend of the bottom is a tongue slightly upturned-at its extremity, as atb, to form a stop, forapurpose to be described. When the members areassembled the parts I) and b shuttle. The forward end of the wall I)extends wellalong under the shield to provide position-the inner memberin the outer member, which latter is made from the blank B, in mypresent invention. Said blank is bent laterally along the line 6 Fig. 8,at the forward end of wall b and such bent over portion is shaped topresent a shield 12 downcurved at its forward end at 6 and as shown inFigs. 2, 3 and 5 the upper face of the shield is upwardly inclined fromthe top of the will 5 toward the tip of the a firm and rigid supporttherefor, the notch 2 assisting'in the shaping of the shield by theforming dies. i

Viewing Figs. 3 and 6 it will be seen that the upturned end I) of theextension Z1 is separated from the adjacent upright edges of the frontand rear walls, providing the inner end of a holder for the insertion ofa pad p of felt, flannel, or other friction producing material,asi'shown in Fig. 1, over which the thread draws from ,"the bobbin whenthe shuttle is threaded.

. As best shown in Fig. 1 the edge Z) of the shield extends in adiagonal direction front- I ward from the wall Z) and. toward theshuttle-tip, and then forward at b to the beginning of the downcurvedpart 67, thence diagonally toward the rear wall of the shuttle, as at b.The end of the wall I) nearestthe bobbin-receiving opening A is -pro-\longed at b and bent laterally toward and nearly to the rear wall I),the prolongation I) being shaped to present a tapered guard convex onits upper edge, and concaved or slightly hooked at its low'er edge, asat 1), Figs. (land 10, the point or nose of the guard being turnedforward, as shown in Fig. 1. TlllS guard not only serves asa'. means to1 blank C from which is mad the other memheir of the threading device,its structure pre enting the parts complementalto those of tie memberalready described and necesduring the operation of threading. theshuttle.

Referring to Fig. 9 the blank C is bent, along the lines 0 to presentparallel and upturned front and rear walls a, c, Fig. 7, the formerbeing the higher of the two, and the wall 0 is bent laterall and outwardalong the line 0*", to form the substantially triangular head 0 curvedover to lie upon the shuttle-body adjacent the entrance slot indirecting-the thread into such slot asit draws around and slides downthe horn 0 formed by the inclined forward edge of the front wall c. "Thewall is cut. out to'provide a heel c at the lower end of the horn andform a. clearance which accommodates the inner end of the liner 0 forthe deliveryeye of the shuttle. The heel as usual serves to retainthe-thread in the eye after it has over artc at the top of the wall 0forms a pro ongatlon of the head c? and seats in a beak-r at. the upperend of the horn and forming the forward terminatlon of the head 0" andthe horn, the beak being bent passagepformcd by the parallel walls 0, c.The point 0 and majqr portion .of the beak are urned' away from theshuttle-tip, as shown; and its upper edge is inclined from the apex c!to the. oint of the beak.". bIaid bea'k tapers, in the direction of itslength, as will be apparent, and its forward face is inshuttle-tip,sotha't during the threading operation the thread will slip over thebeak readily and off its point into the thread passagc.- The beak willalso readily shed a loop of thread if thrown forwardiuponfas lhen thetwo members of the tdevice are assembledthe shield extends frontwardbeyond the apex of the-beak, for a purpose to be referred to.' Opposite71, b, and similar holes 0"" are made in the walls a, a, so located thatwhen the two members of the threading devices are assembled a singlefastening or retaining bolt M, Figs. 1 and 2, can be passed through thetwo sets of holes and the sl'mttle-wood, retaining the threading devicesecurely in the shuttle and locking its members fixedly together.

sary to the effective .control of the thread recess a in the top of theshuttle d ig. 1.

l'have shaped the blank C to provide for a and extended rearwardly overthe thread.

clined' withlrcsp'edt to the longitudinal axis of the shuttle and alsowith respect to the brew ing- The bottom w of the thread vpa ssage hasat a, the forward edge 0 of the head assisting been drawn under theheel...and the bent frmitward and overhangs the beak-,lflas clearlyshown in Fig. 1, the front edge 1?); crossing above the beak at quitea'dis'tance holes. I) are drilled or punched in .the walls scarce itsforward end a toe and at its opposite bled,--and to efiect this theinner tipped up and 'sage rests flat upon I outer member, as in rightpart b of end it is beveled 05 to leave a slight projection 0 while alaterally bent ear 0 on the topv of the wall 0 fits into a recessed partof the shuttle-wood. Herein I'have shown the upright end of the wall 0nearest the bobbin-opening A as notched, at c, for a pun to bedescribed.

The two members of the threading device, made as described, have now tobe assemmember is the beak on its front wall is passed under the theouter member, a' ainst 'the upturned stop 5 as shown 111 41g. 5. Withthe parts in the relative posi tion therein illustrated the inner memberis swung down about the stop I) as a fulcrum, (the walls c and 0-fitting snugly and easily between the wallsb and b of the outer memher)until the bottom 0 of the thread pasthe bottom 6 of-the Fig. 3. At thistime the projection c wipes down into place a ainst the adjacent face ofthe notched upthe extension 6 so that the two members of the threadingdevice are definitely fixed in'proper relative position,

andat such time the holes 0 will register with the. holes 6 after whichthe assembled members are ut into the shuttle and locked therein andtogether by the single bolt M, th'e friction pad 0 being-forced intoplace between the'bolt M and the upturned part 6- and held laterally bythe walls 0, c,

large friction surface at the bottom and inner end of the threadpassage. By locating the projection a? at the frontside of the bottom 0of. the

thread passage vit clears'the guard b when the members are assembled asdescribed, and by oftsctting the toe c and the tongue having the stopI), as best shown in Fig. l, the inner or rearmost'end ofthe liner e iscleared when the threading device is posltioned in the shuttle.

' down from .the position shown in Fig. 5 to that shown in Fig. 3 thepoint of the guard b enters the notch 0 as shown in 10, the extremity ofthe point projectihg be yond the plane of the front face of the wallc'.-

Referring to Fig. 2 it arts of the threading below the top of theshuttle-body, particularly at the back of the shuttle-,- so thud therewill be seen that all can not be any interference with the warp as theshuttle passes through the shed.

In both Figs. 2 and 3 it will be seen that shield on the rear wall of.the toe o bringing up 1 As the inner member is swung s l l eiiected onthreading of the shuttle is completed.

device are ehtn'ely the frontwardly extended parts 0 and or the wallc'slope downward toward the tip of the shuttle at the eye-end thereof,to assist the direction of the thread over and beneath. the beak on thefirst shot of the shuttle following filling' replenishment. Supposingthe fresh supply'offilling to have been insorted in the shuttle, as thelatter is picked the thread draws over the convex upper edge of theguard b and around and beneath its point, passing into the notch a andout of it into the thread passage, the concave lower edge or theguard-then extending over the thread. Slice under the guard the threadis trapped in the inlet or inner end of the thread passage and cannot bethrown or whirled out of it, .for the face of the rear wall 0 is beyondthe tip or point-of the finger, as clearly shown in Fig. 10, and as theguard is very near the t-i of the bobbin the whirling of the threa isrestricted within proper limits. Ordinarily the thread slides along theprolongation 0 and over the head 0 and is drawn beneath the shield b,the down-curved and rearwardl inclined'or diagonal edge 7) of the shie dacting to positively depress the thread and draw it down across the topofthe beak .07, OH its point and then beneath the beak, this being efirst shot of the shuttle and the thread is then in the thread passageand lies in the channel A, or acrossits front wali at. Now the return orsecond shot of the shuttle is made, .and the thread as it draws aroundthe home and under the edge c of thehead c is directed under the heeland into the entrance slot a, passing thence through theslot e bf theliner-e into such liner and into the delivery-eye a, so that i If thethread should not be'drawn beneath the beak on the firstshet it willstill be in deliverable condition without danger of breakage, for thethread will draw oil around the base of the guard b, the latter nowserving as a leader for the thread. This capability of the guard isclearly shown in Fig. 1, for the linger is curved rearward and forwardtoward the beak, making a kind of book for the thread to. draw around.After the thread has been directed beneath the beak on the first shotand the. shuttle starts back on the" second shot the forward edge b andfront edge 6 of the shield act to direct the thread against the edge eof the head at a-point so tar away from the apex c" of the -;beak,toward the front of the shuttle, that the thread, even if very kinky orfinegcannot curl or twist in such a manneras to get behind the apex andthence off the beak. Hence after the thread has once been drawn underthe beak it cannot approach the apex of the beak near enough to slideback behind such apex and fall. off or be shed from the beak. Referringto Fig. 1 it will be sen'that the diagonal edge 'b" of the shi ld andthe guard 7 are a long distance. apart, the intervening spacecommunicating directly with the thread passage, so that if a loop ofthread should be thrown forward from the bobbin it would rarely strikethe shield, but would drop across the guard into the open space,

and would be taken up without any possibility of catching on the beak.Should the loop 5 be long enough to strike the shield the edge I)thereof would direct theloop frontward away from the beak and out ofdanger. I

. By making the shield and the guard on one member of the threadingdevice, and the head and rearwardly and-backwardly turned beak on theother member the construction of said members is materially facilitated,and the assemblage thereof is easily-effected in the manner described.Herein that side or wall of the shuttle nearest the front of the loom isregarded as the front of the shuttle, and the rear of the shuttle is itsopposite side, when the shuttle is on the lay. and the term forwardmeans toward the tip of the shuttle at the thread-delivering endthereof.

Havingfully described my invention, what I claim as new and desire tosecure by Letters Patent is:-

1. An automatically-threadingshuttlehaving an open delivery eye and a,two-part sheet-metal threading device, each member thereof havingupturned front and rear walls one pair of which is adapted to entersnngly :10 between the other pair and form a thread passage,.one of thefront walls terminating in a horn having a rearwardly turned beak andthe other front wall having a fixed guard thereon overhanging the threadpasssage at its inner end, one of the 1.:ear'walls having a frontwardlyextended shield overlapping the beak and the other rear wall having anotch to receive. the point of the guard, and means to" properlyposition one 40 of said members with relation to the other when saidmembers are assembled.

v 2. An antomatically-threading shuttle having an open delivery-eye anda two-part sheet-metal threading device. each member thereof havingupturned front and rear walls one pair of which is adapted to entersnugly between the other pair and form a thread passage, one of thefront walls terminating in a horn having a rearwai-dly turned beak andthe other front' wall having a fixed guard thereon overhanging thethread passage at its inner end. terminating in a point. ,and turnedforward toward the beak, the ,poi-nt extending rearward beyond the planeofftho face the rear wall of the thread passage. to admit. thefillingdhreadthereinto while preventing its withdrawattherefrom.and afrontwardly extended shield on theother rear wall, overlapping the beak,

the guard serving as a-guide for delivery of the thread independently ofthe deliveryeye.

3. An automatiea'lly-threading shuttle having an open delivery-eye and atwo-part sheet-metal threading device, each member guard on the front wathereof having a turned front and rearwulls one pair of whic is adaptedto be inserted between the other pair and swung down intooperatii'eposition between them, to Gun 0. thread passage, a horn on thefront wall of one member, having a rearwardly- :turned beak, and afrontwardlv extended. shield"v on the rear wall of the other memlierQW-li'lflbr' ping the beak, the shield being downcufrved i at itsforward end beyond the beak, to" 15 tively depress and direct the threadof fi ling down under the beak, a guard on one of -lfhe the guard.

at. An automatically-threadingshuttlehavs5 .ing an open delivery-eve anda two-part sheet-metal threading device, the nner niem ber thereofhaving upturned walls constitutmg a thread passage, the front wall 'term- 'nating in a horn having a rcarwardly-turned beak and the rear wallhaving a notch-1n; 5' its inner end, the other outer. member havingupturned walls toreceive between them the walls of the inner member, therear wait of the outer member having a fron'lwardly extended shieldoverla )ping the beak, a

ll at its inner end, overhanging the thread passage and turned forwardwith its point extended into the notch, and a stop on the outer memberto coiiperate with a toe on the inner member and forma fulcrum aboutwhich the inner member can be swung into and out of opera-i tiveposition with relation to the outer member.

An autonmticall v-threading shuttle having an open delivery-eye and atwo-part sheet-metal threading d,evice,the inner member thereof havingupturned walls constituting a thread p:ls.\'tlg0-,il le front 'wallterminating in a horn having a rearwardly turned beak and the rear wall.having a notch in its inner end, the other outer memher having upturnedwalls toreeeive be- I tw eeiithem the wallsvof the innermember, 15

the rear wall of the outer member having a; frontwardly extended shieldoverlap ing the beak, a guard on the front wallat i s inner end,overhanging the'thi'ad :nassage at its inner end and with its pointextended into 1 0 the notch'beyond the plane of the front face of thewall, and means to position said members relatively to each other whenas sembled. t g 6. An automatically-threading shidtl 12 ,having-an epeadelivery-eye and a two-part she'dt metal threading device, the innermember thereof having upturnedswallsconstitilting a thread passage, the"front wall terminating in a horn having a-rearwardly the notch beyondface of thew-all, the outer member having 5 tween the said -upturned sothread passage sage, and a stop ner member having beyond the thereofinto operative position,

6.0 separable threading device forming a thread passage, a

turned beak and the rear wall having a v notch in its inner end, theother outer memher having upturned walls to receive between them theWalls of the inner member,

5 the rear 'Wall of the outer member having a frontwardly extendedshield overlapping the beak, a guard on the front wall at its inner end,overhanging the thread passage at its inner end and with its pointextended into the plane of the front upturned portions at" the oppositeends of its bottom, and projections on the inner member, at its oppositeends, to enter beportions on the outer member and position the twomembers when asembled.

7. An automatically=threading shuttle having an open delivery-eye and atwo-part 20 sheet-metal threading device, one member thereof havingupturned walls forming a thread passage, the front wall terminating inhorn having a rearwardly turned beak,

and a forwardly extended toe on the bottom 25 of the thread passage,

the other member also having upturned walls the rear one having afrontwardly extended the beak and the front wall having a fixed guard atits inner end overhanging the and having its point extended rearwardbeyond the plane of the face of the rear wall of the first-named member,to"

assist in directing the filling-thread into an toprevent its escape fromthe thread pason the second-named member to engage the toe on thefirst-name member and position it when swung downrd to place theupturned walls thereof be tween the walls of thefirst-named member."

,8. An automatically-threading shuttle having an open deliveryreye andjathreading device eomposedxfiitwo members madeof "sheet metal and: ang'hlarl i movable into oper'ative position one \vlthm 'the other, the inhornterminating in a fined guard on the overlapping the beak and beingdowneur'i' ed over it and having its'front'edge extendedapexof-thelbeak, the guard. be inglocated. at the inner end of andoverhanging the thread passage, and means on the outer member tocotiperate with the inner member and permit angular movement ventingrelative longitudinal movement of said members when operativelypositioned.

' 9. An automatically-threading shuttle having an open delivery-eye anda'two-part, made of pressed sheet-metal., each member having parallel ntnr. ed Walls, the walls of the inner memb being movable into operativeposition between walls of the outer member and rearwardly exshieldoverlapping a. thread-passa e and a beak, a shie d and a' outer member,the shield.

while premetal threading tended thread-directing guard on the outerfront wall overhanging the thread passage at its inner end, a horn onthe inner front wall having a beak the passage at its outer end, saidwall being extended fronlfward to form a head and a prolongation thereoftoward the inner end of the thread passage, said head and itsprolongation being downwardly. inclined from the inner to the outerendof the thread passage to facilitate direction of the threadthereovcr, a frontwardly extended shield on the outer rear walloverlapping the beak, an extension on the outer member, upturned at theinner end of-thc thread passage, to form the inner end of a holder for afriction pad, and

.an upturned stop on the outer member at the to cotiperate the latter isthe inner end of the thread passage and extending nto the pocket, a toeon the inner mcmber,and a stop on the outer member to cotiperate withthe toe and posi-- tion the inner members when angularly moved intoplace within the outer mel'nber.

11, An antomatically-threading shuttle having an open delivery-eye and athreading device composed of two members made of sheet-metal and movableinto operative position one within the other, the inner member having athread passage and an overhanging head provided with a horn terminatingin a beak, the top of the head being inclined inner end of the threaddownward from the a frontwardly extended passage to the beak,

shield on the outer member overlapping the beak and inclined upwardly toa point above the beak and downcmved forwardly beyond such point, and aguard on one of the members overhanging the inner end of the threadpassage, to direct the thread thereinto and prevent its escapetherefrom, said guard being turned forward toward the beak to serve asa' leader it freely independently 1.2. An automatically threadingshuttle having an open delivery eye, and a sheetdevice having opposite,upturned walls forming a thread passage, the bottom of thesame beingupturned at its inner end, said threading device having a hornterminating in a beak rearwardly extended over the outer end of thethread. sage, a frontvvardly extended shield over apof the delivery-eye.

turned rearwardly over for the thread-and deliver ping the beak anddowncurved toward the shutt1e-tip,'to positively engage and depress thethread below the beak, a retaining bolt extended transversely throughthe 'shuttle- I Wood andpassing through the Walls of the thread passagejust abovethe bottom there-; of, and alfriction pad fixedly held in thebottom of the thread passage between the upname to this specification,

, 4 Witnesses: turned inner end" thereofi'and the exposed .10 portion ofthe retaining bolt and held from I transverse movement between the Wallsvof the passage.

In testimony whereof, I have signed my two subscribing witnesses;

EDWARD s.- STIMP SCiN.

GEORGE E. CHANDLER, E. D. 'Oseoon.

in the pres'enceof

